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• Yildirim, N. C.(9)
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• MakaleAçık Erişim2011Scopus SJRQ2/r/munzur/4036
  Sequential and Selective Extraction of Copper in Different Soil Phases and Plant Parts from Former Industrialized Area

  Kaplan, Olcay; Kaya, Gokce; Yaman, Mehmet

  Copper (Cu) is an essential trace element for all living organisms; however, excess amounts in soil, plants, and food have negative impacts on the environment and human health. The aim of this study was to determine Cu levels in different chemical phases of soils and the relationship between Cu levels in soil phases and concentrations in plants. Soils and plants grown in these soils from an industrialized area in Turkey were analyzed using a selective and four-stage sequential extraction procedure. Copper levels in exchangeable fractions were found up to 658 mg kg(-1) while total levels were in the range of 133-5609 mg kg(-1). Copper concentrations in plant parts (roots and stem) were in the range of 2.6-240 mg kg(-1). The exchangeable forms of Cu were in the range of 3-22% of total Cu concentrations. The relationships were observed between soil Cu and Rumex plant Cu, and soil Cu and root of Brassicasea plant Cu.

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  AtıfWoS11·OpenAlex10

  İncele
• MakaleYalnız künye2011Scopus SJRQ4/r/munzur/4035
  Investigations on the growth kinetics of hantzschia amphioxys homa lagoon by izmir bay (Aegean Sea)

  Kutlu, Banu; Buyukisik, Baha

  zschia amphiarys were investigated under continuous-light period and batch culture conditions. The optimum temperature and light intensities were found as 18 degrees C and 52 mu mol/m(2)s (saturasyon light), respectively. mu(max) and K-s values estimated for each nutrient were obtained as follows: ammonia for 1.528 day(-1) 2.959 mu g-at- NH4+-N/L, nitrate 1.22 day(-1), 7.01 mu g-at NO3- -N/L, phosphate 1.767 and 1.172 day(-1) 5.07 and 0.460 mu g-at PO4-(3)-P/L, silicate 1.141 day(-1) and 0,499 mu g-at Si/L. Carrying capacity values estimated for each nutrients were obtained as follows: nitrate 113,7 mu g chl a/L, 190.11 phosphate 113.7 mu g chl a/L, 1.798. Nitrogen limiting nutrients was found as in this study.

  AtıfWoS2

  İncele
• MakaleYalnız künye2011Scopus SJRQ2/r/munzur/3987
  Immunostimulating Effect of Levamisole on Spleen and Head-Kidney Leucocytes of Rainbow trout (Oncorhynchus mykiss, Walbaum 1792)

  Seker, Engin; Ispir, Unal; Dörücü, Mustafa

  An in vitro cultivation method for spleen and head kidney organ section were used to investigate the effects of levamisole on the immune response. After 10 days of culture with 10 mu g/ml, 50 mu g/ml and 100 mu g/ml or no levamisole in the culture media, the non specific defense reaction were measured by glass-adherent NBT (nitroblue tetrazolium) positive cells activation and phagocytic activity. Elevation in phagocytic activity was found for 10 mu g/ml and 50 mu g/ml levels of levamisole (P < 0.001), but no differences were found at levels of phagocytic activity in between 100 mu g/ml levamisole groups and control groups (P > 0.05). In the spleen and head kidney leucocytes, increased response to levamisole was shawn for all doses in the glass-adherent NBT positive cells activation.

  AtıfWoS7

  İncele
• MakaleAçık Erişim2011Scopus SJRQ4/r/munzur/3955
  Constituents of the Essential Oils of Two Hypericum capitatum Choisy Varieties (var. capitatum and var. luteum Robson) from Turkey

  Bagci, Eyup; Yuce, Ebru

  The essential oils from the aerial parts of two varieties (var. capitatum and var. luteum Robson) of Hypericum capitatum (Sect. Drosanthe) grown in Turkey were analyzed by GC and GC-MS. Forty-eight compounds were identified in the essential oils of var. capitatum with alpha-pinene (20.3 %), caryophyllene oxide (11.8 %), hexadecanoic acid (8.9 %), beta-caryophyllene (6.5 %) and undecane (3.8 %) as main constituents. Thirty-eight components were identified in the oil of var. luteum with camphor (15.3 %), germacrene D (10.5 %), beta-myrcene (7.4 %), caryophyllene oxide (6.5 %) and beta-cububene (6.3 %), as the abundant components. More quantitative and qualitative differences were determined between two varieties of H. capitatum essential oils. The results were discussed in means of renewable resources and chemotaxonomy.

  AtıfWoS15

  İncele